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arXiv · 1512.05520

Antiproton--proton annihilation into pion pairs within effective meson theory

Ying Wang·Yury M. Bystritskiy·Egle Tomasi-Gustafsson
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Abstract

Antiproton--proton annihilation into light mesons is revisited in the few GeV energy domain, in view of a global description of the existing data. An effective meson model is developed, with mesonic and baryonic degrees od freedom in $s$, $t$, and $u$ channels. Regge factors are added to reproduce the proper energy behavior and the forward and backward peaked behavior. A comparison with existing data and predictions for angular distributions and energy dependence are done for charged and neutral pion pair production.

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Ying Wang, Yury M. Bystritskiy, Egle Tomasi-Gustafsson. 2015-12-17. Antiproton--proton annihilation into pion pairs within effective meson theory. https://doi.org/10.1103/physrevc.95.045202

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